{ "id": "1503.00390", "version": "v1", "published": "2015-03-02T01:55:26.000Z", "updated": "2015-03-02T01:55:26.000Z", "title": "Lateral Heterojunction Sb2Te3/Bi2Te3 and its topological transport", "authors": [ "Fucong Fei", "Qianjin Wang", "Zhongxia Wei", "Rui Wang", "Danfeng Pan", "Bo Zhao", "Xuefeng Wang", "Xinran Wang", "Fengqi Song", "Baigeng Wang", "Jianguo Wan", "Guanghou Wang" ], "categories": [ "cond-mat.mes-hall" ], "abstract": "A lateral heterojunction of topological insulator Sb2Te3/Bi2Te3 was successfully synthesized using a two-step solvothermal method. The two crystalline components were separated well by a sharp lattice-matched interface when the optimized procedure was used. Inspecting the heterojunction using high-resolution transmission electron microscopy showed that epitaxial growth occurred along the horizontal plane. A rectification curve was observed at low temperatures. Quantum correction from the weak antilocalization reveals the transport of the topological surface state. There was, therefore, a staggered-gap lateral heterojunction with a small junction voltage, which is appealing for a platform for spin filters and one-dimensional topological interface states.", "revisions": [ { "version": "v1", "updated": "2015-03-02T01:55:26.000Z" } ], "analyses": { "keywords": [ "lateral heterojunction sb2te3/bi2te3", "topological transport", "one-dimensional topological interface states", "staggered-gap lateral heterojunction", "two-step solvothermal method" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }